Nuclear-pumped laser operating in the master oscillator—amplifier regime

The efficiency of a master oscillator-amplifier scheme and the possibility of its using in multichannel nuclear-pumped laser systems are studied. The small-signal gain and saturation parameter are measured for the He:Ar:Xe = 380:380:1 mixture at a pressure of 1 atm at a wavelength of 2.03 {mu}m. It...

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Bibliographic Details
Published in:Quantum electronics (Woodbury, N.Y.) N.Y.), 2008-07, Vol.38 (7), p.655-660
Main Authors: Pikulev, A A, Tsvetkov, V M, Sosnin, P V, Sinyanskii, A A
Format: Article
Language:English
Subjects:
AMPLIFICATION
AMPLIFIERS
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
EFFICIENCY
ELECTROMAGNETIC RADIATION
ELECTRONIC EQUIPMENT
GAIN
LASER RADIATION
LASERS
NUCLEAR PUMPING
OSCILLATORS
POWER DENSITY
PULSES
PUMPING
RADIATIONS
SIGNALS
WAVELENGTHS
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Summary:The efficiency of a master oscillator-amplifier scheme and the possibility of its using in multichannel nuclear-pumped laser systems are studied. The small-signal gain and saturation parameter are measured for the He:Ar:Xe = 380:380:1 mixture at a pressure of 1 atm at a wavelength of 2.03 {mu}m. It is shown that the small-signal gain increases linearly with the specific pump power density and achieves 1.1-1.2 m{sup -1} at a pump density of 40 W cm{sup -3}. The saturation parameter is almost independent of the pump power and is equal to 70-90 W cm{sup -2}. It is found that at the pump-pulse maximum (40 W cm{sup -3}) the laser radiation power increases after amplification by 100%. (active media, lasers, and amplifiers)
ISSN:1063-7818
1468-4799
DOI:10.1070/QE2008v038n07ABEH013643